Properties files are flat - they don't offer any sort of nesting or grouping of keys - but you can pseudo-nest your keys by creating dotted names with identical prefixes.
While we personally like the prior flat thermal map, many viewers of graphics might find information better conveyed by pseudo-perspective into three dimensional data.
虽然我们个人喜欢先前的平面温度图，但是很多观察图形的人可能会通过伪透视三维数据而获得更好的信息。
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Based on elastic theory, in this paper cast-in-situ RC hollow flat slab is converted to orthotropic plates by the pseudo-plates theory and the equilibrium equation is built.